Volume 16, Issue 13, December 2015, Pages 5573-5578
Volume 16, Issue 17, December 2015, Pages 7871-7874
Volume 15, Issue 1, January 2014, Pages 175-178
Volume 12, Issue 5, May 2011, Pages 1189-1192
Volume 1, Issue 2, February 2000, Pages 121-126
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